Trastuzumab (Herceptin)

Trastuzumab, commonly known as Herceptin, is a medication used to treat certain types of breast cancer and stomach cancer that overexpress a protein called HER2. This protein can promote cancer cell growth, and Herceptin works by targeting and blocking HER2, helping to slow or stop the cancer's progression. It is typically used in combination with other treatments, like chemotherapy, and can improve survival rates for patients with HER2-positive tumors. As a targeted therapy, it focuses on specific characteristics of cancer cells, making it more effective for those who test positive for HER2.